Home / 31,753.92-47,631.28-21,890.56

Finding the Fourth Proportional to 31,753.92, 47,631.28 and 21,890.56

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Solution

The fourth proportional to 31,753.92, 47,631.28 and 21,890.56 is: 32,836.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,753.92 : 47,631.28 = 21,890.56 : x
  2. Step 2: Convert to fraction form
    31,753.92/47,631.28 = 21,890.56/x
  3. Step 3: Cross multiply
    31,753.92x = 47,631.28 × 21,890.56
  4. Step 4: Simplify right side
    31,753.92x = 1,042,675,392.72
  5. Step 5: Solve for x
    x = 1,042,675,392.72/31,753.92
  6. Step 6: Final answer
    x = 32,836.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.